CN1822689A - Split mobile terminal - Google Patents

Abstract

Present invention provides a split-type mobile terminal. It contains embedded Mini handset and mobile terminal connected with embedded Mini handset through standard communication interface. When making mobile conversation, split-type mobile terminal can be divided into two, only using embedded Mini handset to complete mobile conversation requirement, when using video playing etc function, said split-type mobile terminal can merge two-in-one, embedded Mini handset and mobile terminal host computer connected through standard interface to support mobile network different kinds of new service function, said split-type mobile terminal as well as convenient for carry about, and possessing perfect network function.

Description

Split mobile terminal

technical field

The invention belongs to the technical field of mobile terminals, and more specifically relates to a terminal device with many functions such as mobile communication and wireless Internet access.

Background technique

At present, the development of wireless mobile terminals is changing with each passing day. From the initial mobile phones that only meet the function of telephone calls to the latest smart phones with wireless Internet access functions, the functions of wireless mobile terminals are becoming more and more powerful. However, the inconvenient problem that comes with powerful functions is that the volume and weight of wireless mobile terminals expand, making it difficult to carry them around.

In order to meet the needs of various networks and displays, large-size and high-resolution screens are an essential configuration for current multi-functional mobile terminals. Various additional devices, such as Bluetooth, infrared, expansion cards, alphabetic keyboards, stereo speakers, Fingerprint recognition devices and even small hard drives have become essential configurations for advanced wireless mobile terminals.

Due to the increase of various functions, including support for network functions required by 3G mobile communication terminals such as videophone, the power consumption of mobile terminals has risen sharply, so the battery capacity of advanced wireless mobile terminals has increased accordingly, that is, the battery volume has increased. increased badly.

At present, the development trend of integrated multi-functionality of mobile terminals makes the volume and weight of wireless mobile terminals with powerful functions continuously increase, and gradually breaks through the acceptable range of "mobile" terminals. The mobile terminal feels very inconvenient. Just imagine a user who uses the above-mentioned multi-function mobile terminal, how to take out the bulky wireless mobile terminal from the briefcase in a hurry when calling, because it cannot fit in the pocket; What an embarrassing situation it was when a big smartphone covered most of his face. Moreover, the appearance of the multi-functional and large-volume mobile terminal is far from being able to achieve the delicate and compact level desired by consumers.

However, if it is only for the portability and small size of the mobile terminal, the user will have no way to enjoy the access to the network anytime, anywhere and other new business application functions brought about by the continuous development of new technologies in mobile communications. If the user Without the ability to use various web applications, it is impossible to achieve unlimited high-efficiency completion of various transactions anywhere.

The problem existing in the current mobile terminal is the contradiction between functionality and portability. If the user wants the mobile terminal to be easy to carry around, light and compact, it is difficult to achieve powerful functions. If the user wants the mobile terminal to have comprehensive application functions, it is difficult to be light, compact and easy to carry. With the development of the third-generation mobile communication, more and more new functional applications have been added to the mobile terminal, so functionality and portability The contradiction between sex is becoming more and more prominent.

Contents of the invention

The purpose of the present invention is to overcome the increasingly prominent contradiction between the portability and functionality of the mobile terminal due to the powerful functions of the current multi-functional mobile terminal, and provide a split mobile terminal, including a built-in Mini mobile phone and The mobile terminal host, during mobile calls, the split mobile terminal can be divided into two, and only the small and light built-in Mini mobile phone itself can complete the needs of mobile calls. When using network applications, video playback and other functions, the split The one-piece mobile terminal can be combined into one, and the embedded Mini mobile phone and the mobile terminal host are connected through a standard interface, which can support various new business functions of the mobile network.

In order to achieve the above purpose, the split mobile terminal of the present invention includes a built-in Mini mobile phone, and a split wireless mobile terminal host connected to the built-in Mini mobile phone through a standard communication interface.

The embedded Mini mobile phone includes a radio frequency unit, a baseband unit that receives signals transmitted by the radiofrequency unit and performs digital coding processing, an audio input and output device connected to the baseband unit, a keyboard, a display screen and a memory, and a battery connected to the above-mentioned parts for power supply unit, and a communication interface connected with the mobile terminal host.

The mobile terminal host includes an application processor, a camera connected to the application processor, bluetooth, a keyboard, a display screen and a memory, and an interface for communicating with an embedded Mini mobile phone.

The standard communication interface includes serial port and USB interface.

The mobile terminal host is equipped with a large-capacity battery, which can charge the built-in Mini mobile phone through the USB interface.

The split mobile terminal can support different modes of mobile networks by replacing the built-in Mini mobile phone that supports different network modes.

Using the split-type mobile terminal in the present invention, the embedded Mini mobile phone itself can complete all the functions of the mobile call, and after being embedded in the mobile terminal host, it can provide it with network functions and editing and playing of multimedia files. The advantage of this technical solution is that it can flexibly convert the split mobile terminal into two or combine the two into one according to the actual needs of users, which not only has the portability of the mobile terminal, but also has the powerful application functions of the mobile terminal. , perfectly achieving the coordination between the functionality and mobility of the mobile terminal.

For the 3G network era, the present invention has greater significance. Due to the different standard systems of the third generation mobile communication, 3G mobile terminals are also divided into different systems. However, by adopting the present invention, only one mobile terminal host is needed, and roaming can be performed between WCDMA/GSM, CDMA2000/CDMA1x and TD-SCDMA networks arbitrarily. At the same time, any upgrade of the mobile network only needs to upgrade the Mini phone itself. And the Mini mobile phone itself can be made very small because it only completes the function of mobile calls, and the cost is very low.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is the outline schematic diagram of an embodiment of the present invention;

Fig. 2 is the schematic diagram when two parts of an embodiment of the present invention are separated;

Fig. 3 is the schematic diagram when two parts of an embodiment of the present invention are connected;

Fig. 4 is a hardware module block diagram of an embodiment of the present invention;

Fig. 5 is a software structural composition diagram of an embodiment of the present invention;

Fig. 6 is a schematic diagram of a two-part standard connector according to an embodiment of the present invention;

FIG. 7 is a schematic circuit diagram of an embedded Mini mobile phone according to an embodiment of the present invention.

As shown in Figures 1 and 2, the split mobile terminal 1 includes an embedded Mini mobile phone 1-1 and a mobile terminal host 1-2, and the embedded Mini mobile phone 1-1 communicates with the mobile terminal host 1-2 through a standard communication interface. 2 connected, the built-in Mini mobile phone 1-1 is only used in mobile communication, and its volume can be made very small. It is embedded into the interior of the mobile terminal host 1-2 from the side opening of the mobile terminal host to form a whole without affecting The appearance of the entire split-type mobile terminal 1 .

When the built-in Mini mobile phone 1-1 is used alone, it can complete mobile calls and receive and send short messages, which are frequently used functions of these mobile phones, and can provide network functions for it after being embedded in the mobile terminal host 1-2. If the split-type mobile terminal 1 needs to talk in the state of combining two into one, the built-in Mini mobile phone 1-1 can be directly separated to make a mobile call without affecting the network application. It is also possible to use the split-type mobile terminal 1 as a whole to directly conduct mobile calls, or use the wired/wireless earphones configured on the split-type mobile terminal.

That is to say, under normal circumstances, you only need to use the built-in Mini mobile phone 1-1 itself to make and receive calls, which highlights the mobility of split mobile terminals. Sometimes, only the built-in Mini mobile phone 1-1 needs to be embedded in the mobile terminal host 1-2 to form a powerful wireless PDA mobile phone, which satisfies the functionality of the split wireless mobile terminal. Simultaneously, because the mobile terminal host 1-2 is generally equipped with a larger capacity battery, it can charge the embedded Mini mobile phone 1-1 through the USB interface between the mobile terminal host and the embedded Mini mobile phone. Make the standby time of the built-in Mini mobile phone 1-1 soar several times.

The built-in Mini mobile phone 1-1 and the mobile terminal host 1-2 of the split mobile terminal 1 can be separated from each other, and the embedded Mini mobile phone 1-1 is taken out from the side opening of the mobile terminal host 1-2 as An ordinary mobile phone is used to support daily standby and calling. And the separated mobile terminal host 1-2 can be used as a common PDA, which is suitable for various functions without mobile network, for example, applications such as querying information, editing files and statistical data.

As shown in Figure 3, the split mobile terminal 1 includes an embedded Mini mobile phone 1-1 and a mobile terminal host 1-2, and the embedded Mini mobile phone 1-1 is connected with the mobile terminal host through a standard communication interface 3, wherein The standard communication interface 3 can use serial ports, USB interfaces or other common interfaces to realize the connection between the embedded Mini mobile phone 1-1 and the mobile terminal host 1-2, and the split mobile terminal can be combined into one to support the embedded Mini mobile phone 1-1 can be hot-swapped without restarting, and the mobile terminal host 1-2 can support different modes of mobile networks by replacing the embedded Mini mobile phone 1-1 that supports different network modes.

The connected split-type mobile terminal can provide comprehensive mobile network service functions, such as video telephony, video streaming, and network applications including e-mail, e-commerce and network access. Moreover, the split-type mobile terminal has a large-screen display and a large-capacity battery.

FIG. 4 is a hardware connection block diagram of the split mobile terminal 1 . The embedded Mini mobile phone 1-1 includes an antenna, a radio frequency unit connected to the antenna, a baseband unit that receives the analog signal transmitted by the radio frequency unit and converts it into a digital signal, and performs encoding processing, an audio input and output device connected to the baseband unit, and a keyboard , display screen and memory, and a USB interface communicating with the mobile terminal host, in which the voice information is transmitted to the baseband unit through the microphone, and the processed digital voice signal is converted into an analog signal in the audio vocoder of the baseband unit, and passed through the power amplifier After amplification, the audio information is output through the earpiece or speaker.

The mobile terminal host 1-2 includes an application processor, a camera, bluetooth, infrared, keyboard, display screen and memory connected to the application processor, and a USB interface communicating with the embedded Mini mobile phone. Through the standard USB communication interface, the embedded Mini mobile phone and the mobile terminal host are connected, and the communication between the embedded Mini mobile phone and the mobile terminal host adopts the standard/extended AT command interface.

As shown in Figure 5, from the perspective of software modules, the embedded Mini mobile phone 1-1 has the function of network protocol stack. At the same time, it is generally not equipped with an advanced operating system, but only with a simple graphical interface. The 1-2 part of the mobile terminal host integrates various applications. At the same time, it has an operating system and a graphical interface system. The operating system of the mobile terminal host adopts an open operating system, such as a Linux system.

As shown in Figure 6, a schematic diagram of the standard connector 3 connecting the mobile terminal host 1-2 and the embedded Mini mobile phone 1-1 is provided, and the communication between the mobile terminal host 1-2 and the embedded Mini mobile phone 1-1 The method adopts the USB form, and the USB interface is the interface of 1-4 in the figure, which are respectively D+, D-, V (power line), and GND (ground line). The transmission of data between the embedded Mini mobile phone 1-1 and the mobile terminal host 1-2 is realized. It is also possible to add the interfaces 6-9 as other general-purpose signal lines as required to provide the communication function between the two.

As shown in Figure 7, the built-in Mini mobile phone is WCDMA/GSM standard, and the supported frequency bands are: UMTS: 2100MHz, GSM/GPRS: 900/1800/1900MHz.

The main functions completed by the radio frequency unit part circuit 4 of the embedded Mini mobile phone are as follows: the wireless signal transmitted by the UMTS: 2110~2170MHz base station received by the antenna end is demodulated by the radio frequency receiving circuit 4-1 to obtain the baseband WCDMA signal; The baseband WCDMA signal of the uplink channel of the mobile phone is modulated and converted by the radio frequency transmission circuit 4-2, and transmitted from the antenna at 1920MHz~1980MHz; and the GSM/GPRS: 900/1800/1900MHz demodulation/modulation is completed through the radio frequency transmission circuit 4-2 ; At the same time provide a stable and controllable 19.2MHz frequency source for the embedded Mini mobile phone.

Among them, the radio frequency chip adopts Qualcomm's radio frequency receiving chip RFR6250 and radio frequency transmitting chip RTR6250.

1. RF front-end part: It is composed of antenna, antenna switch module and WCDMA duplexer.

The antenna is a wireless signal transmitting and receiving device, composed of a whip antenna and a helical antenna. When stretched, it is used as a whip antenna with a gain of 2dBi; when it is retracted, it is used as a helical antenna with a gain of 0dBi. The antenna switch module adopts the GN06001L type integrated circuit of Panasonic Company.

2. The radio frequency receiving circuit 4-1 is mainly composed of the RFR6250 chip. The signal received from the antenna is filtered by the duplexer to select the receiving frequency band. After entering the low noise amplifier, the low noise amplifier has the function of gain switching. When a strong interference signal enters, the gain is reduced, thereby reducing the distortion produced by the subsequent stage. The output of the low noise amplifier is sent to the WCDMA receiving radio frequency filter, and the differential output is sent to RFR6250. RFR6250 supports zero-IF technology, directly down-converts to baseband signal, generates I, Q two-way differential analog signal, and enters MSM6250 chip for further demodulation.

3. The radio frequency transmitting circuit 4-2 is mainly composed of the following circuits: RTR6250 chip, WCDMA transmitting radio frequency filter, power amplifier PA5200 and isolator.

WCDMA signal is output from baseband unit to RTR6250. For accurate transmit power control, MSM6250 controls transmit gain through TX_AGC_ADJ PDM signal. After mixing, the output signal is directly up-converted from the analog baseband signal to 1920MHz~1980MHz WCDMA radio frequency signal, and then output to the power amplifier PA5200 through the WCDMA transmit radio frequency filter. After amplification, it is output to the WCDMA duplexer through the isolator.

GSM/GPRS: 900/1800/1900MHz circuit, the circuit mainly includes GSM900MHz RF receiving filter, 1800MHz RF receiving filter, 1900MHz RF receiving filter and RTR6250. RTR6250 integrates GSM/GPRS receiving zero-IF circuit, GSM/GPRS transmitting circuit, GSM/GPRS local oscillator generation and distribution circuit and local oscillator phase-locked loop circuit. GSM/GPRS launch adopts OPLL circuit.

The baseband unit circuit 5 of the embedded Mini mobile phone is composed of Qualcomm's MSM6250 mobile terminal modulation chipset, mainly including a central control and data processing unit, a power supply unit, a sound processing unit, and an external interface unit. The chipset supports the FDD DS-W-CDMA standard and the Global System for Mobile Communications (GSM)/General Packet Radio Service (GPRS) standard.

The baseband unit circuit 5 implements a complete digital modulation and demodulation system. The modulation module includes convolutional coding, interleaving, orthogonal modulation, direct sequence long code spread spectrum, baseband filtering and other modules, and finally provides I/Q signals to RTR6250. The modulation module includes demodulation modules such as RAKE receiver, correlation demodulation, de-interleaving, and Viterbi decoding, and finally provides data information for the digital sound signal of the vocoder and other peripherals.

User interface modules typically include ringing, RF power control, frequency control, memory control, etc. The power supply circuit adopts the power management module, cooperates with the voltage detection circuit, real-time clock circuit, voltage stabilization circuit, forced power-on circuit, etc. to form a complete power supply circuit.

USB data communication can directly communicate with the dedicated external Host USB device of the mobile terminal host through the USB transceiver inside the embedded Mini mobile phone.

The system software of the subscriber unit is executed by the embedded microprocessor ARM926EJ-S, which controls most of the functions of the subscriber unit. The user interface of the subscriber unit generally includes a keypad, LCD display and ringer. These are directly controlled by the MSM6250. When the user changes the operating mode, the MSM6250 will turn off the clocks of the unused circuits in order to minimize the dynamic power consumption. The MSM6250 integrates a loudspeaker and a headphone amplifier, and can directly interface with a loudspeaker and earphones.

The configuration of the mobile terminal host adopts Intel PXA270 series chips, the running speed is 624MHZ, the memory configuration is 64M Byte SDRAM and 128M Byte Flash; the operating system adopts Linux operating system. The mobile terminal host uses a 3.5-inch VGA screen. The overall weight of the terminal host is 350 grams. The mobile terminal host has fully reached the performance of a small desktop computer, can run various application programs with ease, and fully meets various needs of users.

The built-in Mini mobile phone only supports ordinary calls and network communication functions, and can support WCDMA, CDMA2000, TD-SCDMA networks of various standards. The screen configuration is small, so the size and power consumption are very small. The connection between the embedded Mini mobile phone and the terminal host is integrated through the cooperation of the process structure when embedded.

The separated built-in Mini mobile phone has small size and practical functions. Under normal circumstances, you can carry the built-in Mini mobile phone with you. When it is necessary to use a web browser or a web application program similar to MSN, the embedded Mini mobile phone is embedded on the mobile terminal host.

Claims (5)

1. a split type portable terminal is characterized in that comprising embedded Mini mobile phone, and the mobile terminal host that connects as one by standard communication and embedded Mini mobile phone.

2. split type portable terminal according to claim 1, it is characterized in that embedded Mini mobile phone comprises antenna, the radio frequency unit that is connected with antenna, the signal of the received RF unit transmission Base Band Unit that the line number word code is handled of going forward side by side, the audio frequency input-output equipment, keyboard, display screen and the memory that are connected with Base Band Unit, be connected battery unit with power supply with above-mentioned various piece, and the communication interface that is connected with mobile terminal host.

3. split type portable terminal according to claim 1 is characterized in that mobile terminal host comprises central processing unit, the camera that is connected with central processing unit, bluetooth, keyboard, display screen and memory, and with the interface of embedded Mini mobile communication.

4. split type portable terminal according to claim 3, the communication interface that it is characterized in that connecting embedded Mini mobile phone and mobile terminal host is serial ports or USB interface, and embedded Mini mobile phone and mobile terminal host communicating by letter between the two adopted standard/expansion AT command.

5. according to the described split type portable terminal of each claim of claim 1 to 4, it is characterized in that mobile terminal host is furnished with jumbo battery, by USB interface to embedded Mini cell-phone charging.

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